<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<!-- reset.css  -->
		<style>
			div{
				box-sizing: border-box;
			}
			.container{
				
				width: 400px;
				height: 300px;
				border: solid 1px black;
				
			}
			.footer{
				width: 100%;
				height: 220px;
				border-bottom: solid 1px green;
				position: relative;
			}
			
			.footer_caption{
				width: 400px;
				height: 30px;
				position: absolute;
				bottom: 0px;
				font-weight: 600;
				
				/* filter:alpha(opacity=50); */
			}
			
			.bg{
				background-color: black;
				opacity: 0.5;
			}
			
			.font_content{
				color: white;
				text-align: center;
				line-height: 30px;
			}
			
		</style>
	</head>
	<body>


		<div class="container">


			<div class="footer">
				
				<img src="https://img1.baidu.com/it/u=4126462069,3757273373&fm=253&fmt=auto&app=138&f=JPEG" width="100%" height="100%" />
				
				<div class="footer_caption bg"></div>
				
				<div class="footer_caption font_content">111111</div>
				
			</div>



		</div>

	</body>
</html>